Polyurethane O-Rings - Cast Urethane O-Rings
General Polyurethane O-Rings Description:
Polyurethane rubber is a thermoplastic elastomer formed by reacting a polyol with a diisocyanate or a polymeric isocyanate in the presence of suitable catalysts and additives. Polyurethane rubber is widely used due to its high strength, and excellent tear and abrasion resistance. Polyurethane also provides excellent permeation resistance.
Choose Marco Rubber & Plastics for your Polyurethane O-Rings
For more than 40 years, Marco Rubber & Plastics has been offering custom and standard o-rings and other sealing solutions for multiple industries. With millions of products produced and shipped annually, we are the experts your organization needs to seal the success of your application. Explore standard size o-ring sizes below.- Some Petroleum Oils
- Some Hydrocarbon Fuels
- Oxygen / Ozone
- Not resistant to Ketones (MEK)
- Not resistant to Acids
- Not resistant to Auto / Aircraft Brake Fluids
- Not resistant to Chlorinated Hydrocarbons
- Not resistant to Water
- Excellent Wear Resistance
- Poor Compression Set Resistance
- Excellent Short-Term Resilience
Popular Polyurethane O-Rings Compounds:
Hundreds more specialty compounds available. Contact a Marco Sales Consultant or Engineer for more information.
| Compound # | Datasheet | Color | Duro (Shore A) | Relative Price | Typical Inventory Level | High Temp (F) | Low Temp (F) | Features | |
|---|---|---|---|---|---|---|---|---|---|
| P1000 | Translucent | 70 |  | Med | 250 | -65 | High performance 70 durometer Polyurethane | Get QuoteBuy Online | |
| P1001 | Translucent | 90 | | Med | 250 | -65 | High performance 90 durometer Polyurethane | Get QuoteBuy Online | |
| P1004 | Translucent | 90 |  | Med | 180 | -30 | General purpose 90 durometer Polyurethane | Get QuoteBuy Online | |
| P1006 | Translucent | 70 | | Med | 180 | -30 | General purpose 70 durometer Polyurethane | Get QuoteBuy Online |
Polyurethane O-Rings Temperature Range:
The temperature ranges presented above are approximations for dry air service only and should not be used to determine design specifications or end-use temperature limits. Actual temperature range of a compound in an end-use application is highly dependent on part type, hardware configuration, applied forces, chemical media, pressure and thermal cycling effects, and other factors. The most practical way of determining an end-use temperature range is testing in the actual application conditions. Consult a Marco Engineer for more details.
Common Names:
Urethane, AU, EU, PU
Trade Names:
Adiprene®, Millathane®, Vibrathane®
Polyurethane Rubber O-Rings Features:
- Good hydraulic oil and gasoline resistance
- Resistant to pure aliphatic hydrocarbons (propane, butane, fuel)
- Resistance to mineral and silicone oils and greases
- Resistant to water, oxygen, ozone and aging
- Excellent tear and abrasion resistance
- Available in multiple types and compounds to meet performance and cost requirements
Polyurethane Rubber O-Rings Limitations:
- Not compatible with acids, ketones, esters, ethers, alcohols, glycols
- Hot water, steam, alkalis and amines
